Product Key Issues

How to Activate Office 2024 on Mac with an LTSC Key

Nimra Malik Sep 29, 2026 879 views

Question details

The user needs to activate Microsoft Office 2024 on a Mac using an LTSC (Long Term Servicing Channel) volume license product key.

How to Activate Office 2024 on Mac with an LTSC Key

Product: Microsoft Office 2024
Device & OS: macOS
Scenario: Attempting to activate volume-licensed Office applications on a MacBook Air.
Observed behavior: The LTSC product key cannot be entered or used to activate the Office applications via a standard Microsoft account sign-in prompt.

Before you start

Ensure you have uninstalled the Mac App Store version of Microsoft Office, as it does not support volume license activation.

Solution 1Recommended

Activate Using the Volume License (VL) Serializer

LTSC volume licenses on a Mac require a specific serialization tool provided by an organization administrator, rather than a standard product key entry.

Volume licenses for macOS cannot be activated by simply typing a product key into the Office apps. An administrator must provide the VL Serializer to register the installation on the device.

Obtain the correct installer

Download the official Microsoft volume-license installer for Office 2024 from the Microsoft Volume Licensing Service Center (VLSC) or request it from your IT administrator.

Install Office applications

Run the downloaded installer to install the Office suite on your Mac. Do not use the versions found in the Mac App Store.

Run the VL Serializer

Obtain the Microsoft Volume License (VL) Serializer from your organization's licensing administrator. Run this package file on your Mac to automatically apply the LTSC license to your Office installation.

Activate Using the Volume License (VL) Serializer

Admin Privileges Required: You will need administrator access to your Mac to install the Office suite and run the VL Serializer.

Solution 2

Troubleshoot Third-Party or Retail Licenses

If you are trying to activate a retail license or suspect your third-party LTSC key is invalid, follow standard activation procedures.

Free Microsoft Office alternative

Try WPS Office for Mac – No Complex Licensing Required

Skip the hassle of volume license serializers and complicated activation keys. WPS Office provides a lightweight, highly compatible, and free alternative to Microsoft Office for Mac users.

1. Download WPS Office: Visit the official WPS website and download the Mac version.
2. Install the Application: Open the downloaded .dmg file and drag the WPS app into your Applications folder.
3. Start Creating: Launch WPS Office and immediately begin working on your documents, spreadsheets, and presentations without entering a license key.

Fully compatible with Microsoft Word, Excel, and PowerPoint formatsOne-click installation directly from the Mac App Store or official websiteFree to use basic features with no product key or serializer requiredLightweight design ensures smooth performance on MacBook Air and Pro

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Frequently Asked Questions

Can I use an LTSC product key with Office downloaded from the Mac App Store?

No, the Mac App Store versions of Microsoft Office are not compatible with volume-license activation. You must download the installer directly from Microsoft or your organization's portal.

What is the Microsoft VL Serializer?

The Volume License (VL) Serializer is a small utility provided by Microsoft to enterprise and organization administrators. It is strictly required to activate volume-licensed versions of Office on macOS.

Why isn't my Microsoft account accepting my Office 2024 key?

If your key is an LTSC volume license key, it cannot be linked to a personal Microsoft account. Activation must be done at the device level using the VL Serializer tool provided by the organization that owns the license.

Installation & Activation